Добавить в избранное
Форум
Правила сайта "Мир Книг"
Группа в Вконтакте
Подписка на книги
Правообладателям
Найти книгу:
Навигация
Вход на сайт
Регистрация



Реклама




Название: Cryogenic Helium Refrigeration for Middle and Large Powers
Автор: Guy Gistau Baguer
Издательство: Springer
Год: 2020
Формат: PDF
Страниц: 725
Размер: 39,21 МБ
Язык: English

This book offers a practical introduction to helium refrigeration engineering, taking a logical and structured approach to the design, building, commissioning, operation and maintenance of refrigeration systems. It begins with a short refresher of cryogenic principles, and a review of the theory of heat exchangers, allowing the reader to understand the importance of the heat exchanger role in the various thermodynamic cycle structures. The cycles are considered from the simplest (Joule Thomson) to the most complicated ones for the very large refrigeration plants and, finally, those operating at temperatures lower than 4.5 K.
The focus then turns to the operation, ability and limitations of the main components, including room temperature cycle screw compressors, heat exchangers, cryogenic expansion turbines, cryogenic centrifugal compressors and circulators. The book also describes the basic principles of process control and studies the operating situations of helium plants, with emphasis on high level efficiency.
A major issue is helium purity, and the book explains why helium is polluted, how to purify it and then how to check its purity, to ensure that all components are filled with pure helium prior to starting.
Although the intention of the book is not to design thermodynamic cycles, it is of interest to a designer or operator of a cryogenic system to perform some simplified calculations to get an idea of how components or systems are behaving. Throughout the book, such calculations are generally performed using Microsoft® Excel and the Gaspak® or Hepak® software.








НЕ РАБОТАЕТ TURBOBIT.NET? ЕСТЬ РЕШЕНИЕ, ЖМИ СЮДА!





Автор: ak5812 1-11-2020, 20:13 | Напечатать |
 
Уважаемый посетитель, Вы зашли на сайт как незарегистрированный пользователь.





С этой публикацией часто скачивают:

Посетители, находящиеся в группе Гости, не могут оставлять комментарии к данной публикации.


 MirKnig.Su  ©2021     При использовании материалов библиотеки обязательна обратная активная ссылка    Политика конфиденциальности